255/70 R19 doesn't belong to the most popular dimensions for winter tyres - there are tyre models available, which can be compared to
325/30 R21,
155/60 R15,
155/65 R13. Let's break down the sizing - 70 is height of the tyre, which is calculated as 70% of the tyre width (255mm), which means the sidewall height has 178.5 mm. The wheel diameter is R19, which means it fits to a 19 inch/482.6mm diameter wheel. The total circumference of the tyre is mm, which is very similar to 185/55 R15
(1836.26 mm), 255/45 R19
(2237.13 mm), 185/75 R14
(1988.94 mm), 255/60 R18
(2397.66 mm), 195/50 R15
(1809.56 mm), 265/30 R21
(2175.24 mm), 195/65 R14
(1913.54 mm).
